providers/virtualbox: discard state if cloning
providers/virtualbox: discard state if cloning

taliesins/vagrant,signed8bit/vagrant,chrisroberts/vagrant,bdwyertech/vagrant,marxarelli/vagrant,gitebra/vagrant,jmanero/vagrant,bryson/vagrant,aaam/vagrant,bshurts/vagrant,sni/vagrant,petems/vagrant,jtopper/vagrant,mitchellh/vagrant,bryson/vagrant,benh57/vagrant,invernizzi-at-google/vagrant,justincampbell/vagrant,kamazee/vagrant,johntron/vagrant,Chhed13/vagrant,johntron/vagrant,lukebakken/vagrant,bshurts/vagrant,PatOShea/vagrant,krig/vagrant,bshurts/vagrant,krig/vagrant,lonniev/vagrant,Sgoettschkes/vagrant,Endika/vagrant,benizi/vagrant,kamigerami/vagrant,jmanero/vagrant,PatrickLang/vagrant,bdwyertech/vagrant,chrisroberts/vagrant,mwrock/vagrant,carlosefr/vagrant,mitchellh/vagrant,kamigerami/vagrant,kamigerami/vagrant,bryson/vagrant,justincampbell/vagrant,benizi/vagrant,invernizzi-at-google/vagrant,tomfanning/vagrant,carlosefr/vagrant,sni/vagrant,Chhed13/vagrant,mitchellh/vagrant,vamegh/vagrant,lukebakken/vagrant,jtopper/vagrant,invernizzi-at-google/vagrant,mwrock/vagrant,bshurts/vagrant,jtopper/vagrant,gitebra/vagrant,petems/vagrant,crashlytics/vagrant,johntron/vagrant,carlosefr/vagrant,sni/vagrant,Endika/vagrant,taliesins/vagrant,Endika/vagrant,sni/vagrant,TheBigBear/vagrant,Sgoettschkes/vagrant,carlosefr/vagrant,chrisroberts/vagrant,tomfanning/vagrant,petems/vagrant,johntron/vagrant,aneeshusa/vagrant,PatOShea/vagrant,vamegh/vagrant,lukebakken/vagrant,bryson/vagrant,PatOShea/vagrant,signed8bit/vagrant,PatrickLang/vagrant,bdwyertech/vagrant,TheBigBear/vagrant,Chhed13/vagrant,kamazee/vagrant,vamegh/vagrant,tomfanning/vagrant,taliesins/vagrant,kamazee/vagrant,jmanero/vagrant,TheBigBear/vagrant,mitchellh/vagrant,aaam/vagrant,benizi/vagrant,PatrickLang/vagrant,benh57/vagrant,crashlytics/vagrant,aneeshusa/vagrant,aneeshusa/vagrant,kamigerami/vagrant,marxarelli/vagrant,jean/vagrant,marxarelli/vagrant,bdwyertech/vagrant,justincampbell/vagrant,sax/vagrant,mwrock/vagrant,lukebakken/vagrant,signed8bit/vagrant,jean/vagrant,jtopper/vagrant,PatrickLang/vagrant,jean/vagrant,benh57/vagrant,lonniev/vagrant,gitebra/vagrant,krig/vagrant,Chhed13/vagrant,mkuzmin/vagrant,justincampbell/vagrant,mkuzmin/vagrant,jean/vagrant,crashlytics/vagrant,sax/vagrant,kamazee/vagrant,Sgoettschkes/vagrant,aaam/vagrant,signed8bit/vagrant,chrisroberts/vagrant,lonniev/vagrant,krig/vagrant,aneeshusa/vagrant,sax/vagrant,Sgoettschkes/vagrant,invernizzi-at-google/vagrant,petems/vagrant,benh57/vagrant,marxarelli/vagrant,jmanero/vagrant,Endika/vagrant,vamegh/vagrant,mwrock/vagrant,crashlytics/vagrant,benizi/vagrant,PatOShea/vagrant,gitebra/vagrant,aaam/vagrant,mkuzmin/vagrant,mkuzmin/vagrant,TheBigBear/vagrant,sax/vagrant,tomfanning/vagrant,taliesins/vagrant,lonniev/vagrant